[Flyer88]

We had this happen with our first dog - we got her three weeks after we got married. He was great with us and even with our 2 cats most of the time. Very high strung (Border Collie/Spaniel mix) and always got real skittish when anyone picked up a broom or like object - we adopted her from Sicsa at about 3 months and just figured someone had proably beaten her at some point. When our first son was born he would act real strange and even growl if Austin got near - he eventually bit Austin twice although never breaking the skin (probably because we were always close by). Since we had just had our second son, Aidan, we decided it was just too much of a risk and he went to live with my inlaws in Flordia - they have about 12 acres and 3 other dogs at the time. He ended up getting sick about a year later (thyroid) and died with his 3 buddies by his side. I cried more the day that he left than when I got the news that he had passed - I'm hoping his last year was a good one!
My wife adopted a Aussie who was 12 from a family who had to many medical problems to care for her. She had serious issues with any other animals but was great with kids. Had her evaluated by several trainers and rescue organizations and none would take her so we had to put her down before she killed a cat.
We just got a new puppy that loves the kids and gets along with the cats for the most part - she is much smaller but very active (Cheagle) - hopefully 3rd time is the charm!